Spindle and bearing



Patented Aug. 23, |898.

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Je Q raoev? NrTnD STATES PATENT Bruce.'l

GEORGE O. DRAPER, OF` HOPEDALE, MASSACHUSETTS, ASSIGNOR TO THE DRAPERCOMPANY, OF SAME PLACE AND PORTLAND, MAINE.

SPINDLE AND BEARING.

SPECIFICATION forming part of Letters Patent No. 609,759, dated August23, 1898.

' Application filed December 18, 1897. Serial No. 662,366. (No model.)

To all whom t may concern,.-

Be it known that I, GEORGE O. DRAPER, of Hopedale, county of Worcester,State of Massachusetts, have invented an Improvement in Spindles andBearings, of which the following description, in connection with theaccompanying drawings, is a specification, like letters on the drawingsrepresenting like parts.

This invention relates to that class of spin' ning-spindles wherein thetapering pintle of the spindle enters a correspondingly-tapered bolsterlocated in the bolster-case and it has for its object the production'ofmeans for securing the propert of the pintle in the bolster in a simpleand eiiicient manner, the bolster being adjusted vertically until theproper fit is attained. p

In my present invention the bolster is sustained within the bolster-caseby a support on and relative to which the bolster is verticallyadjustable, the bolster having a frictional engagement with and beingadapted to slide longitudinally in the support.

Figure l is a vertical section of a spindlebearing with one embodimentof my invention applied thereto. Fig. 2 is a perspective view of thebolster-support. Figs. 3 and 4 are sectional and perspective views of amodified form of support; and Fig. 5 is yet another modification ofmyinvention, to be described.`

The spindle A, having a tapering lower end or pintle and provided with asleeve-whirl A2, the bolster-case B, having a threaded shank B2, and thenut B3, to clamp the case to the rail O, may be and are of usual orwell` known construction.

A step or end bearing D for the spindle is shown in Fig. l as resting onthe bottom of the closed lower end of the bolster-case and lling thesame.

The bolster BX may be of any suitable construction, and it is shown assustained by a support F, shown as a sleeve split longitudinally at f,Fig. 2, and resting on the step D, the lower end of the bolster beingtelescopically connected with and held by frictiony in the support. Inorder to adjust the bolster,

it is pushed more or less into the support and held frictionally therebyin adjusted vertical position.

I have omitted any packing for the bolster, and the same `may be of anysuitable or wellknown character.

In Figs. 3 and A l have shown the support EX as closed at its lower endand slotted longitudinally at f to attain the desired expansibility, thespindle-step D inthis instance resting on the bottom of the support, theadjustment and support of the bolster being effected as before.

, Still another modification is shown in Fig. 5, the cup-like support Fbeing made nonexpansible and adapted to receive the lower end of thebolster B5, the latter being reduced in thickness at b and slotted, asat b5, to make a tight frictional fit in the support. The reduced end ofthe bolster does not touch the pintle of the spindle to obviate anypinching of the latter in adjusting the bolster.

In any case the adjustment of the bolster to secure the proper iit ofthe pintle therein is readily and quickly eected, and the constructionis simple, cheap, and durable.

Having fully described my invention, what I claim, and desire to secureby Letters Patent, is-

l. A bolster-case, a bolster, a concentric support telescopicallyconnected with and frictionally engaging the bolster and on whichsupport said bolster is vertically adjustable, and a spindle -stepunconnected withV the bolster. Y

2. The combination with a bolsteigof a split, sleeve-like support infrictional engagement with the lower end of and to adjustably sustainthe bolster at any desired height relative to said support.

3. A spindle having a tapered bearing portion, a bolster therefor, asplit bolster-support lengaging with a sliding fit the lower end of thebolster, to adjustably support the bolster, and a spindle-step below theengaging portion of the bolster and its support.

4. A spindle having a tapered bearing por-V GEORGE O. DRAPER.

Vitnesses:

E. D. BANcRorr, l-l. F. SEARLES.

IOO

